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Advanced Settings
In the advanced settings, you can modify your Z-offset, maximum velocity, acceleration, jerk,
and Esteps/mm. We highly suggest you not modify the configuration settings unless you are
certain it is necessary. Making incorrect adjustments of these settings can have adverse affects
on your prints, and potentially damage your machine.
Z-Offset
Your LulzBot Mini 2 3D printer has the ability to change the first layer height (Z-offset) directly
through the GLCD, even while printing the first layer. Using the GLCD, navigate to Configuration
> Advanced Settings > Z-Offset. While in this screen you can rotate the GLCD knob
counter-clockwise to bring your nozzle closer to the print surface, and rotate it clockwise to
bring it farther away from the bed. Push in the GLCD knob to save your settings.
Acceleration
Acceleration is the derivative of velocity, and determines how quickly your print head and bed
will reach defined speeds. We have this set to 500mm/s2 to help prevent resonance and
shadowing. This can be increased for sharper corners and faster turns, however it can lead to
backlash issues.
Jerk Settings
Jerk is the derivative of acceleration and will determine the maximum change in acceleration
allowed at any given time. VXY- Jerk will control jerk setting for your X and Y-axis. VZ – Jerk will
control the jerk setting for your Z-axis. VE – Jerk will control the jerk settings for your extruder.
Vmax
The Vmax settings will determine the maximum speed that your printer can move on any
specific motor(s). We recommend leaving these settings as is. Increasing these speeds too
much can lead to skipped steps and/or binding. There will be an individual section for X, Y, Z,
and Extruder motors.
Vmin
This sets the minimum overall speeds. We have this set to 0 by default to allow greater control
through your preferred slicing program.
VTrav Min
This will set the minimum travel speed when the tool head is not extruding. We have this set to
0 by default to allow greater control through your preferred slicing program.
Amax
The Amax settings will allow you to define a maximum acceleration limit for each motor.
Increasing these may reduce print time, but can result in shadowing and resonance issues.
A-Retract
This sets the maximum acceleration for retraction moves of the extruder. If this value is set too
high it can lead to stripping. Excessively low values can lead to poor print quality. We have this
set to 3000mm/s2 by default.
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